6520ACRZ View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

6520ACRZ

Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

Intersil 

ISL6520A

ISL6520A DC/DC Converter Application Circuit

Figure 8 shows an application circuit of a DC/DC Converter.

Detailed information on the circuit, including a complete

Bill-of-Materials and circuit board description, can be found

in Application Note AN9932.

+5V

6.19kΩ

10.0kΩ

8200pF

1.00kΩ

0.1µF

ISL6520A

VCC

5

+

CIN

2 x 330µF

MONITOR

AND

PROTECTION

1 BOOT

COMP/OCSET 7

REF

470pF

+

-

FB 6

U1

OSC

2 UGATE

8 PHASE

+-

4 LGATE

3

GND

3.16kΩ

60.4Ω

18000pF

2 x 1µF

D1

0.1µF

Q1

L1

VOUT

Q2

COUT +

0.1µF

3 x 330µF

Component Selection Notes:

CIN - Each 330µF 6.3WVDC, Sanyo 6TPB330M or Equivalent.

COUT - Each 330µF 6.3WVDC, Sanyo 6TPB330M or Equivalent.

D1 - 30mA Schottky Diode, MA732 or Equivalent

L1 - 3.1μH Inductor, Panasonic P/N ETQ-P6F2ROLFA or Equivalent.

Q1, Q2 - Intersil MOSFET; HUF76143.

FIGURE 8. 5V to 3.3V 15A DC/DC CONVERTER

10

FN9016.6

December 10, 2009

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